4911 products

  • Torque Solution 02 - 14 WRX / 04 - 21 STI Solid Billet Mount Package w/ Subaru OEM Mount Plates | TS - SU - 123SB - PL - JDMuscleEngine MountsTS-SU-123SB-PL
    Torque Solution
    $50554
    Pay over time · Est. $15.80/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Torque Solution 08 - 21 WRX/STI / 13 - 21 BRZ Spherical Rear Endlinks | TS - SU - 292 - JDMuscleEnd LinksTS-SU-292
    Torque Solution

    Spherical Rear Endlinks

    Fits: 08-21 WRX/STI, 13-21 BRZ

    $24443
    Pay over time · Est. $7.64/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.


  • In Stock
    HKS [15 - 21 WRX/STI] Hi - Power SPEC - L II Catback Exhaust w/ Burnt Tips | 31019 - AF130 - JDMuscleCat Back Exhaust Systemhks31019-AF130
    HKS
    Only 5 left
    $1,80000
    Pay over time · Est. $56.25/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.


  • In Stock
    IAG Performance 08 - 14 WRX / 08 - 21 STI Flex Fuel Line Upgrade Kit | IAG - AFD - 2203 - JDMuscleFuel Lines and FittingsIAG-AFD-2203
    IAG Performance

    Flex Fuel Line Upgrade Kit

    Fits: 08-14 WRX, 08-21 WRX STI

    Only 1 left
    $12499
  • Cusco [15-21 WRX/STI] Competition Zero-3 Coilovers
    Cusco

    Competition Zero-3 Coilovers

    Fits: 15-21 WRX STI

    $2,23200
    Pay over time · Est. $69.75/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Cusco [04-21 WRX STI] Increased Capacity Rear Differential Cover Blue R180
    Cusco
    $81630
    Pay over time · Est. $25.51/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Up to $108 off
    In Stock
    SuperPro 08 - 21 WRX/STI / 10 - 13 LGT / 09 - 13 FXT Rear Sway Bar 22mm Adjustable | RC0013RZ - 22 - JDMuscleSway BarssprRC0013RZ-22
    Superpro
    Only 2 left
    $25199$359.99 Save $108
    Pay over time · Est. $7.87/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • SuperPro 08 - 21 WRX/STI / 13 - 21 BRZ Rear Differential Pinion Bracket Mount Kit | SPF3200K - JDMuscleBushing KitsSPF3200K
    SuperPro

    Rear Differential Pinion Bracket Mount Kit

    Fits: 08-21 WRX/STI, 13-21 BRZ

    $5799
  • Up to $120 off
    In Stock
    Super Pro 08 - 21 WRX/STI / 10 - 13 LGT / 09 - 13 FXT Rear Sway Bar 24mm Adjustable | RC0013RZ - 24 - JDMuscleSway BarssprRC0013RZ-24
    Superpro
    Only 2 left
    $27999$399.99 Save $120
    Pay over time · Est. $8.75/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Cusco [15-21 WRX/STI] Street Zero A Coilovers Rigid Mount
    Cusco
    $1,62000
    Pay over time · Est. $50.63/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • GSC Power - Division 02 - 14 WRX / 04 - 21 STI Super Alloy Exhaust Valves +1 | 2017 - 8 - JDMuscleIntake and Exhaust Valvesgsc2017-8
    GSC Power-Division

    Super Alloy Exhaust Valves +1 - Set of 8

    Fits: 02-14 WRX, 04-21 WRX STI

    $21192
    Pay over time · Est. $6.62/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Up to $71.50 off
    GSC Power - Division 08 - 21 STI S3 Billet Camshaft Set | 7026S3 - JDMuscleCamsgsc7026S3
    GSC Power-Division

    S3 Billet Camshaft Set

    Fits: 08-21 WRX STI

    $1,17400$1,245.50 Save $71.50
    Pay over time · Est. $36.69/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • HKS 15 - 21 STI Hipermax G Strut / Spring Combo Kit | 80260 - AF001 - JDMuscleStrut / Spring Combohks80260-AF001
    HKS
    $1,98000
    Pay over time · Est. $61.88/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Nameless Performance [19 - 21 STI, 18 STI Type RA] Axle Back w/ Single Wall Polished 3.5" Tips and 5" Mufflers | SUAB15WRX - 5MU - 35SSW - 19STI - JDMuscleAxle Back ExhaustsSUAB15WRX-5MU-35SSW-19STI
    Nameless Performance

    Axle Back w/ Single Wall Polished 3.5" Tips and 5" Mufflers

    Fits: 19-21 WRX STI, 18 WRX STI Type RA

    $81000
    Pay over time · Est. $25.31/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

  • Nameless Performance [19 - 21 STI, 18 STI Type RA] Axle Back 3" Double Wall Polished Tips and No Muffler | SUAB15WRX - 0MU - 30SDW - 19STI - JDMuscleAxle Back ExhaustsSUAB15WRX-0MU-30SDW-19STI
    Nameless Performance

    Axle Back 3" Double Wall Polished Tips and No Muffler

    Fits: 19-21 WRX STI, 18 WRX STI Type RA

    $54000
    Pay over time · Est. $16.88/payment
    ⓘ

    Illustrative estimate only, not a financing quote or guaranteed offer. Actual payments, frequency and terms vary by provider and eligibility. Taxes, shipping and add-ons are excluded.

Subaru WRX STI Performance Parts

We know that the Subaru WRX and STI were built to be customized by automotive enthusiasts like you. That's why our winning team of Subaru WRX and STI experts here at JDMuscle offer a long list of the finest and most effective Subaru STI and WRX parts available on the market. Make your Subaru WRX or STI look, feel, and perform according to your unique tastes as well as your high expectations with top quality aftermarket performance parts. Your vehicle should be as unique as its driver. A stock automobile just doesn't cut it. With JDmuscle, customizing your car with high quality Subaru STI parts has never been easier.

 

Superior Craftsmanship for Every Part

You'll enjoy outstanding craftsmanship and attention to detail evident in every aspect of our beautiful Subaru STI parts! Boost the power, performance, and styling of your Subaru with high-quality performance parts from J Muscle, including WRX STI parts and accessories. Subaru has a focus on superior driving performance, and the aftermarket Subaru STI parts available in our inventory can take you and your vehicle to the next level.

Our Subaru STI Parts & Accessories Are the Best on the Market

Your Subaru is a performance machine, but the right custom Subaru STI parts can make it even better. Whether you opt for exhaust components, ignition components, engine management upgrades, or other enhancements, JDMuscle has the Subaru aftermarket parts you are looking for.

JDMuscle is the leader when it comes to high quality, well tested, and easy to install Subaru STI parts and performance accessories. Get the most out of your vehicle with the finest aftermarket WRX STI parts available, only through JDMuscle. Get in touch today to learn more. Our team of Subaru experts is standing by to answer all of your important questions.

Welcome to JDMuscle, your source for the best Subaru WRX STI performance parts and accessories! If you're looking to boost your Subaru's power and enhance its visual aesthetics, you've come to the right place.

 

Premium WRX & STI Aftermarket Parts

We carry a wide selection of premium aftermarket parts to take your WRX or STI to the next level. Our inventory includes everything from intakes and turbos to improve performance, to lips and wings for an aggressive new look. 

We only carry parts from top brands known for quality and innovation like APR, Cobb, ETS, Invidia, and more. We've carefully curated our catalog to offer you the highest quality components on the market.

 

Improve Your Car's Power & Visual Aesthetics

With our performance upgrades, you can increase your Subaru's horsepower, torque, and throttle response for better acceleration. Feel the rush as your WRX or STI surges forward when you step on the gas. 

We also offer stylish exterior add-ons like side skirts, diffusers, and Subaru WRX & STI front lips to give your ride a customized, head-turning look. Whether you're looking to improve performance or aesthetics, we've got you covered.

Upgrade Your Braking System

Ensuring your Subaru can stop as well as it can go is crucial. We stock 2015-2021 Subaru STI brakes, featuring cross-drilled, slotted, and vented rotors for superior stopping power. Our rotors are crafted from premium materials to withstand repeated heat cycles. Combine them with performance brake pads for shorter stopping distances. You'll have the peace of mind of knowing your car will handle and stop safely.

Enhance The Sound of Your Ride

A throaty exhaust note adds to the thrill of acceleration. We carry top exhaust brands like Invidia, ETS, and Tomei exhausts for 2015-2021 Subaru STI. Get deeper, louder sounds with cat-backs, axle-backs, and headers. Hear your engine truly come alive!

Our user-friendly website makes it easy to find parts for your specific Subaru model. We offer quick shipping across the USA and excellent customer service. Take your WRX or STI to new heights with JDMuscle performance parts! Contact us today.